JPH01280504A - Molding method of hydraulic mineral molding - Google Patents
Molding method of hydraulic mineral moldingInfo
- Publication number
- JPH01280504A JPH01280504A JP15891087A JP15891087A JPH01280504A JP H01280504 A JPH01280504 A JP H01280504A JP 15891087 A JP15891087 A JP 15891087A JP 15891087 A JP15891087 A JP 15891087A JP H01280504 A JPH01280504 A JP H01280504A
- Authority
- JP
- Japan
- Prior art keywords
- filter cloth
- mold
- molding
- filter
- dehydration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 2
- 239000011707 mineral Substances 0.000 title abstract 2
- 239000004744 fabric Substances 0.000 claims abstract description 52
- 230000018044 dehydration Effects 0.000 claims description 16
- 238000006297 dehydration reaction Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000011056 performance test Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000004568 cement Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 239000012783 reinforcing fiber Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は水硬性無機質成形物の成形方法に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a method for molding a hydraulic inorganic molded article.
（従来の技術）
一般に、水硬性無機質成形物、例えばモルタル、繊維補
強セメントあるいは石膏、珪酸カルシウム等の水硬性無
機質成形物から成形物を賦形するには、少なくとも上型
と、水抜孔が設けられた下型とを有し、該下型の型面上
に複数個の透水孔を有する水切板あるいは金網等からな
るいわゆる介在板と、１枚の濾布とがこの順に配設され
た金型を用い、この下型の型上に該無機質成形物を置き
、上型と下型とを閉合しプレスして、所望の形状に賦形
する成形方法が知られている。(Prior Art) Generally, in order to form a molded product from a hydraulic inorganic molded product such as mortar, fiber-reinforced cement, gypsum, or calcium silicate, at least an upper mold and a drainage hole are provided. A metal mold having a lower mold having a lower mold, and a so-called intervening plate made of a drainage plate or a wire mesh having a plurality of water permeable holes on the mold surface of the lower mold, and a piece of filter cloth are arranged in this order. A molding method is known in which a mold is used, the inorganic molded product is placed on the lower mold, the upper mold and the lower mold are closed and pressed, and the product is shaped into a desired shape.
このような成形法では、濾布として、通常ポリエチレン
、ポリエステル、ナイロン、ポリプロピレンその他の合
成繊維からなる織布が１枚宛使用されている。In such a molding method, a single woven fabric made of synthetic fibers such as polyethylene, polyester, nylon, polypropylene, etc. is usually used as the filter cloth.
例えば、特開昭５３−１０１０１５号公報には、複数個
の透水孔を有する水切板と１枚の濾布とを、この順に配
設した下型と上型の間に被成形物を置き、押圧成形によ
り成形する方法が提案されている。For example, Japanese Patent Application Laid-open No. 53-101015 discloses that a molded article is placed between a lower mold and an upper mold in which a drain plate having a plurality of water permeable holes and a filter cloth are arranged in this order. A method of forming by press molding has been proposed.
（発明が解決しようとする問題点）
しかしながら、上記方法では脱水用濾布の具体的な目開
き寸法は記載されていないものの、比較的口開きが小さ
い脱水用濾布を使用するのが通例であり、目開き間にセ
メント粒子、骨材粒子、補強用繊維等が詰まり、脱水不
良や濾布間の離型不良を起こすという問題点があった。(Problem to be Solved by the Invention) However, in the above method, although the specific opening size of the dehydrating filter cloth is not described, it is customary to use a dehydrating filter cloth with a relatively small opening. However, there was a problem in that cement particles, aggregate particles, reinforcing fibers, etc. clogged the openings, causing poor dehydration and poor mold release between the filter cloths.
又、目開きの大きい脱水用濾布を使用すると、目詰りは
解消されるが、セメント粒子、骨材粒子、補強用繊維等
の原材料が目開きより逸散し、原料効率を低下させると
いう問題点があった。In addition, if a dewatering filter cloth with large openings is used, clogging is eliminated, but raw materials such as cement particles, aggregate particles, and reinforcing fibers escape through the openings, reducing raw material efficiency. There was a point.
更に、親水性を向上させるために、介在板として水切板
の上に金網を併用する場合もあるが、押圧成形時に金網
と脱水用濾布並びに成形物と脱水用濾布の摩擦で、該濾
布の両面が著しく損傷し、使用回数が大幅に減少し、長
時間連続成形できないという問題点もあった。Furthermore, in order to improve hydrophilicity, a wire mesh is sometimes used as an intervening plate on top of the draining plate, but during press molding, the friction between the wire mesh and the filter cloth for dehydration, as well as the molded product and the filter cloth for dehydration, may cause the filter to dry out. There were also problems in that both sides of the cloth were severely damaged, the number of times it could be used was greatly reduced, and continuous molding could not be performed for a long time.
（問題点を解決するための手段）
本発明の水硬性無機質成形物の成形方法は、上記問題点
を解決するために、水分を濾過する脱水用濾布を、複数
枚重ね合わせて使用することによって、その目的を達成
するものである。(Means for Solving the Problems) In order to solve the above-mentioned problems, the method for molding a hydraulic inorganic molded product of the present invention uses a plurality of dehydration filter cloths that filter moisture, stacked one on top of the other. By doing so, this purpose is achieved.
本発明の成形方法において、別に図面に示すような金型
を用いる。In the molding method of the present invention, a mold as separately shown in the drawings is used.
１は上型、２は下型である。３は上型１と下型２とが、
閉合されるとき形成される成形物の形状に適合する型窩
である。４は下型２の型面であり、水切孔５が型窩３の
底面に多数貫設されている。６は型面４の底面上に設け
られた平板状の介在板にして、同様に多数の透水孔７が
貫設されている。1 is the upper mold, and 2 is the lower mold. 3, the upper mold 1 and the lower mold 2 are
It is a mold cavity that conforms to the shape of the molding being formed when it is closed. 4 is a mold surface of the lower mold 2, and a large number of drainage holes 5 are provided through the bottom surface of the mold cavity 3. Reference numeral 6 designates a flat plate-shaped intervening plate provided on the bottom surface of the mold surface 4, through which a large number of water permeable holes 7 are similarly provided.
尚、下型２の水切孔５と介在板６の透水孔７とは、必ず
しも一致させる必要はない。Note that the drain hole 5 of the lower mold 2 and the water permeable hole 7 of the intervening plate 6 do not necessarily have to be aligned.
８は二層に重ねて配設された脱水用濾布である。8 is a dehydration filter cloth arranged in two layers.
金型は上型１と下型２とを有し、下型２の型面上に介在
板６と複数枚の脱水用濾布８とが、この順に配設されて
いる。金型を上下方向に開閉することによって、脱水プ
レス成形して水硬性無機質成形物を成形する。The mold has an upper mold 1 and a lower mold 2, and an intervening plate 6 and a plurality of dewatering filter cloths 8 are arranged in this order on the mold surface of the lower mold 2. By opening and closing the mold vertically, dehydration press molding is performed to form a hydraulic inorganic molded product.
本発明の成形方法において、複数枚の濾布を使用する場
合、濾布１枚使用時に比べて、当然各濾布は目開きの大
きな濾布の使用が可能になる。In the molding method of the present invention, when a plurality of filter cloths are used, it is naturally possible to use filter cloths with larger openings than when a single filter cloth is used.
本発明に使用される濾布は、高強度でセメントの濡れ性
に乏しい材質が好ましく、例えばポリエチレン、ポリエ
ステル、ポリプロピレン等の合成繊維が好適である。The filter cloth used in the present invention is preferably made of a material with high strength and poor wettability with cement, and for example, synthetic fibers such as polyethylene, polyester, and polypropylene are suitable.
濾布の目開きは、すべて路間−か、あるいは上層よりも
下層のそれを大きくする必要がある。The opening of the filter cloth must be either between all the passages, or it must be larger in the lower layer than in the upper layer.
この理由は、上層の濾布を通過したセメント粒子、骨材
粒子、補強用繊維等が下層の濾布をも、大した抵抗もな
く通過し、各濾布層の目詰りになる脱水不良を防止する
からである。The reason for this is that cement particles, aggregate particles, reinforcing fibers, etc. that have passed through the upper layer filter cloth also pass through the lower layer filter cloth without much resistance, resulting in poor dehydration that causes clogging of each filter cloth layer. This is because it prevents
（作用）
複数枚の濾布を使用することにより、水分もしくはセメ
ント粒子、骨材粒子、補強用繊維等を含んだ水分が複数
枚の濾布層を通過するので、実質的に使用している濾布
の目開きは比較的大きいものではあるが、目開きが小さ
い濾布の単独使用の場合と同様の濾過性能を発揮する。(Function) By using multiple filter cloth layers, moisture or moisture containing cement particles, aggregate particles, reinforcing fibers, etc. passes through the multiple filter cloth layers, so it is effectively used. Although the opening of the filter cloth is relatively large, it exhibits the same filtration performance as when a filter cloth with a small opening is used alone.
水分は濾布内では、はぼ縦方向に移動するが、濾布層間
では縦方向のみならず、横方向、斜方向を含む多次元的
方向に移動し、上層の濾布から下層の濾布に移行する際
、下層の濾布層の流れ抵抗が流路を選択的に変更させて
通過する。Moisture moves in the vertical direction within the filter cloth, but between the filter cloth layers, it moves not only in the vertical direction but also in multidimensional directions, including the horizontal and diagonal directions, from the upper filter cloth to the lower filter cloth. During the transition, the flow resistance of the underlying filter fabric layer selectively alters the flow path.
介在板として仕切板と金網とを併用した場合、押圧成形
時において、水硬性無機質組成物の成形物と金網の間に
、複数枚の濾布が配設されるので、１枚の濾布が両面か
ら激しい摩擦を受けることはない。When a partition plate and a wire mesh are used together as an intervening plate, a plurality of filter cloths are placed between the molded product of the hydraulic inorganic composition and the wire mesh during press molding. There will be no severe friction from both sides.
（実施例） 以下、本発明の一実施例を図面を参照し乍ら説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
災施皿上
先ず水硬性無機質組成物として次の配合組成物を用意し
た。First, the following composition was prepared as a hydraulic inorganic composition.
セメント １００ 重量部珪石粉
１００ 重量部アラミド繊維
２，０重量部増帖剤（水溶性高分子物質）
０．５重量部水 ６０ 重量
部脱水用濾布として何れもポリエチレン繊維からなる繊
維からなる織物で製せられ、上層の濾布８１は３０メツ
シユ、下層の濾布８２も同じものを使用した。Cement 100 parts by weight Silica powder
100 parts by weight aramid fiber
2.0 parts by weight Thickening agent (water-soluble polymer substance)
0.5 parts by weight Water 60 parts by weight The filter cloths for dehydration were all made of woven fabrics made of polyethylene fibers, and the upper layer filter cloth 81 had 30 mesh, and the lower layer filter cloth 82 also used the same one.
図面の金型を整備したプレス機に取上の配合物を装填し
、以下の要領で濾過性能試験を行った。The above formulation was loaded into a press equipped with the mold shown in the drawing, and a filtration performance test was conducted in the following manner.
成形面圧５０ｋｓｒ／ｃ１１で２００回の脱水プレス試
験を行ない、濾布の目詰り、成形物の濾布からの離型性
、成形物の脱水性、濾布の損傷状況等を観察し、その結
果を性能試験結果表に示す。A dehydration press test was conducted 200 times at a molding surface pressure of 50ksr/c11, and the clogging of the filter cloth, releasability of the molded product from the filter cloth, dehydration performance of the molded product, damage to the filter cloth, etc. were observed. The results are shown in the performance test results table.
天上±１
脱水用濾布の構成として、上層を５０メツシュ下層を２
０メツシユとした以外は、実施例１と同様にして濾過性
能試験を行い、その結果を性能試験結果表に示す。Top layer ±1 The composition of the filter cloth for dehydration is 50 mesh for the upper layer and 2 mesh for the lower layer.
A filtration performance test was conducted in the same manner as in Example 1, except that the mesh was set to 0, and the results are shown in the performance test results table.
ル較皿上
脱水用濾布の構成として６０メツシユのもの１枚とした
以外は、実施例１と同様にして濾過性能試験を行い、そ
の結果を性能試験結果表に示す。A filtration performance test was carried out in the same manner as in Example 1, except that the filter cloth for dewatering on a dish was used as one piece of 60 mesh filter cloth, and the results are shown in the performance test result table.
且ム凱又
脱水用濾布の構成として上層を２０メツシユ、下層を５
０メツシユとした以外は、実施例１と同様にして濾過性
能試験を行ない、その結果を性能試験結果表に示す。Moreover, the structure of the filter cloth for dehydration is 20 meshes for the upper layer and 5 meshes for the lower layer.
A filtration performance test was conducted in the same manner as in Example 1 except that the mesh was set to 0, and the results are shown in the performance test results table.
性能試験結果表
（発明の効果）
取上の通り、本発明水硬性無機質成形物の成形方法にお
いては、複数枚の濾布を使用することにより、１枚の濾
布を使用した従来技術に比べて、次の効果がある。Performance test result table (effects of the invention) As mentioned above, in the method for molding the hydraulic inorganic molded product of the present invention, by using a plurality of filter cloths, compared to the conventional technology using a single filter cloth, This has the following effects.
１）濾布の目開きが実質的に小さくなるので、１枚の濾
布使用に比べ、大きな目開きの濾布の使用が可能になり
、濾過性能を向上させると同時に原材料の流失によるロ
スを防止できる。1) Since the opening of the filter cloth becomes substantially smaller, it becomes possible to use a filter cloth with a larger opening compared to using a single piece of filter cloth, which improves filtration performance and at the same time reduces loss due to washing away of raw materials. It can be prevented.
２）複数枚の濾布間において、水硬性無機質組成物より
分解した水分は、縦方向のみならず、横方向及び斜め方
向を含む多次元方向に移動し、流れ抵抗の小さい濾布内
流路を選択的に通過し、脱水性能を向上する。2) Between the plurality of filter cloths, the water decomposed from the hydraulic inorganic composition moves not only in the vertical direction but also in multidimensional directions including the lateral and diagonal directions, creating channels in the filter cloth with low flow resistance. selectively passes through to improve dehydration performance.
３）濾布構成として、上層の目開きが下層のそれよりも
大きくない場合は、上層を通過した水硬性無機質組成物
が、下層をも大した抵抗もな（通過し、各濾布層の目詰
り防止を助長する。3) When the filter cloth structure is such that the opening of the upper layer is not larger than that of the lower layer, the hydraulic inorganic composition that has passed through the upper layer will also pass through the lower layer without much resistance (passing through each filter cloth layer). Helps prevent clogging.
４）介在板として、仕切板と金網とを併用した場合は、
水硬性無機質組成物の成形物と金網の間に、複数枚の濾
布が配設されているので、１枚の濾布が両面から激しい
摩擦を受けることがなく、濾布の寿命が大幅に延長する
。4) When using a partition plate and a wire mesh together as an intervening plate,
Since multiple filter cloths are placed between the molded hydraulic inorganic composition and the wire mesh, a single filter cloth will not be subjected to severe friction from both sides, significantly extending the life of the filter cloth. Extend.
図面は本発明成形方法に用いる金型の１例を示す断面図
である。
１−・上型 ２−・下型
３−・−型窩 ４−・型面The drawing is a sectional view showing an example of a mold used in the molding method of the present invention. 1-- Upper mold 2-- Lower mold 3-- Model cavity 4-- Model surface
Claims (1)
複数個の透水孔が設けられた介在板と、脱水用濾布とが
この順に配設された金型を用い、該金型を上下方向に開
閉することによって、脱水プレス成形する水硬性無機質
成形物の成形方法において、脱水用濾布を複数枚重ね合
わせて使用することを特徴とする水硬性無機質成形物の
成形方法。 ２、上層の脱水用濾布の目開きが下層のそれより大きく
ないことを特徴とする特許請求の範囲第１項記載の水硬
性無機質成形物の成形方法。[Claims] 1. It has at least an upper mold and a lower mold, and on the mold surface of the lower mold,
Hydraulic inorganic molding that uses a mold in which an intervening plate with a plurality of water permeable holes and a filter cloth for dehydration are arranged in this order, and performs dehydration press molding by opening and closing the mold in the vertical direction. A method for molding a hydraulic inorganic molded product, which comprises using a plurality of dehydrating filter cloths stacked one on top of the other. 2. The method for molding a hydraulic inorganic molded article according to claim 1, wherein the opening of the upper layer of dehydration filter cloth is not larger than that of the lower layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15891087A JPH01280504A (en) | 1987-06-25 | 1987-06-25 | Molding method of hydraulic mineral molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15891087A JPH01280504A (en) | 1987-06-25 | 1987-06-25 | Molding method of hydraulic mineral molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01280504A true JPH01280504A (en) | 1989-11-10 |
Family
ID=15682018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15891087A Pending JPH01280504A (en) | 1987-06-25 | 1987-06-25 | Molding method of hydraulic mineral molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01280504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587160A1 (en) * | 1992-09-10 | 1994-03-16 | Sumitomo Electric Industries, Ltd. | Process and mold for molding ceramics |
| JP2006297931A (en) * | 2005-04-18 | 2006-11-02 | Cai Qingzong | Method for forming conductive concrete block including graphite |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712605A (en) * | 1980-06-27 | 1982-01-22 | Kubota Ltd | Manufacture of colored tile |
| JPS59183810A (en) * | 1983-04-02 | 1984-10-19 | Mamoru Uchimizu | Concentrator for liquid containing solid substance |
| JPS6138607A (en) * | 1984-07-21 | 1986-02-24 | ユナイテッド・ワイア・リミテッド | Filter screen |
-
1987
- 1987-06-25 JP JP15891087A patent/JPH01280504A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712605A (en) * | 1980-06-27 | 1982-01-22 | Kubota Ltd | Manufacture of colored tile |
| JPS59183810A (en) * | 1983-04-02 | 1984-10-19 | Mamoru Uchimizu | Concentrator for liquid containing solid substance |
| JPS6138607A (en) * | 1984-07-21 | 1986-02-24 | ユナイテッド・ワイア・リミテッド | Filter screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587160A1 (en) * | 1992-09-10 | 1994-03-16 | Sumitomo Electric Industries, Ltd. | Process and mold for molding ceramics |
| JP2006297931A (en) * | 2005-04-18 | 2006-11-02 | Cai Qingzong | Method for forming conductive concrete block including graphite |
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